CN203089605U - Push-pull conversion rotating-type wheelchair running gear - Google Patents
Push-pull conversion rotating-type wheelchair running gear Download PDFInfo
- Publication number
- CN203089605U CN203089605U CN 201220635287 CN201220635287U CN203089605U CN 203089605 U CN203089605 U CN 203089605U CN 201220635287 CN201220635287 CN 201220635287 CN 201220635287 U CN201220635287 U CN 201220635287U CN 203089605 U CN203089605 U CN 203089605U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- connecting rod
- axletree
- wheelchair
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a wheelchair accessory, in particular to a rocking bar reciprocating type rectilinear motion conversion rotating running gear. When a wheelchair adopts a small-diameter wheel or a similar mechanical device, a running driving device is provided. According to the design, two rocking bars which are positioned on the same axis and have opposite directions are adopted; when the rocking bars swing to the same direction, clockwise rotation and anticlockwise rotation are respectively formed on a shaft; the rocking bars are respectively connected with a ratchet wheel clutch and are fixed on the shaft; therefore, when the two rocking bars are swung back and forth along one straight line, the two ratchet wheel clutches fixed on the shaft can alternatively apply power to the shaft to continuously drive the wheels of the wheelchair to rotate; the size of the wheelchair can be reduced, a user can travel for a long distance, and pollution on clothes by dust can be avoided.
Description
Technical field
This utility model relates to a kind of Wheel-chair accessory of taking turns, and specifically is a kind of double rocking lever oscillating rectilinear motion, the running gear of conversion rotation.
Background technology
Wheel Wheel-chair in the past mainly is the wheel of paying that relies on two road wheels, with the mode driving wheel Wheel-chair walking of arm paddling.There is following defective in this walking manner: 1, because the spoke diameter of wheel Wheel-chair is bigger, to the volume formation obstacle of the wheel Wheel-chair that contracts.2, when the arm paddling is paid wheel, can't apply power continuously, so be difficult to long distance walking to wheel.3, when the arm paddling is paid wheel, dust on the tire and mud pollution clothes.
Summary of the invention
This utility model is intended to design a kind of wheelchair travel driving unit, when the wheel Wheel-chair adopts minor diameter wheel or similar machinery, provides a kind of travel driving unit.The design adopts two on same axle center, the rocking bar that direction is opposite; When same direction is swung, on axle, form clockwise respectively and be rotated counterclockwise.Connect a pawl clutch separately, and be fixed on the axle.Like this at two rocking bars when straight line swings back and forth, be fixed on two pawl clutches on the axle, can replace the countershaft power that applies, the wheel rotation of Continuous Drive wheel Wheel-chair.Can not only dwindle the volume of wheel Wheel-chair, user is walked at a distance.Also can break away from the pollution of dust to medicated clothing.
Description of drawings
Fig. 1 is the apparatus structure axonometric drawing.
Fig. 2-the 1st, the sketch map when the device stick advances.
Fig. 2-the 2nd, the sketch map when the device stick retracts.
Fig. 3 is the A-A profile of installation drawing 2-1.
The specific embodiment
This utility model has related to the driving device that a kind of wheelchair garage is walked, as shown in Figure 1, major technique is characterised in that, ratchet (4) is fixed on the axletree (6) with the internal ring of ratchet (5), the outer shroud of ratchet (4) is connected with lower shake-changing arm (3), the outer shroud of ratchet (5) is connected with upper rocker arm (7), one end of one end of connecting rod (2) and connecting rod (8) and stick (9) is connected on the movable axis, the other end of connecting rod (8) and connecting rod (2) links to each other with lower shake-changing arm (3) with upper rocker arm (7) respectively, and axletree (6) is separately fixed on 2 moving fulcrums of vehicle frame with stick (9).
Stick (9) is its stick other end when pushing away to the right, by movable axis (1) drivening rod (8) and connecting rod (2) to left movement, simultaneously upper rocker arm (7) and lower shake-changing arm (3) are the center of circle with axletree (6) under the promotion of connecting rod (8) and connecting rod (2), rotation round about respectively, lower shake-changing arm this moment (3) passes through ratchet (4) to axletree (6) transmission of drive force, upper rocker arm (7) zero load.When stick (9) applies direction strength when pulling back, drive link (8) and connecting rod (2) drive upper rocker arm (7) respectively and lower shake-changing arm (3) is the center of circle with axletree (6), rotation is returned round about, and upper rocker arm this moment (7) passes through ratchet (5) to axletree (6) transmission of drive force.To sum up tell, because stick constantly waves, two ratchets have been realized the continuous rotation of wheel alternately to the axletree transferring power.
Claims (2)
1. rotary wheelchair running gear is changed in a push-and-pull, it is characterized in that: ratchet (4) is fixed on the axletree (6) with the internal ring of ratchet (5), the outer shroud of ratchet (4) links to each other with lower shake-changing arm (3) and is fixing, the outer shroud of ratchet (5) links to each other with upper rocker arm (7) and is fixing, one end of one end of connecting rod (2) and connecting rod (8) and stick (9) is connected on the movable axis (1), the other end of connecting rod (8) and connecting rod (2) links to each other with lower shake-changing arm (3) with upper rocker arm (7) respectively, and axletree (6) is separately fixed on 2 moving fulcrums of vehicle frame with stick (9).
2. rotary wheelchair running gear is changed in push-and-pull according to claim 1, it is characterized in that: when stick (9) is back and forth done rectilinear motion forwards, backwards, the vertical pole other end, is the center of circle by movable axis (1) and connecting rod (8) and connecting rod (2) drive upper rocker arm (7) and lower shake-changing arm (3) with axletree (6), rotation round about respectively, continuous conversion direction of rotation, thus drive ratchet (4) and ratchet (5) are alternately to axletree (6) transferring power; Because stick constantly waves, two ratchets with straight reciprocating motion, are converted to continual rotatablely moving alternately to the axletree transferring power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635287 CN203089605U (en) | 2012-11-27 | 2012-11-27 | Push-pull conversion rotating-type wheelchair running gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635287 CN203089605U (en) | 2012-11-27 | 2012-11-27 | Push-pull conversion rotating-type wheelchair running gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203089605U true CN203089605U (en) | 2013-07-31 |
Family
ID=48841056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220635287 Expired - Fee Related CN203089605U (en) | 2012-11-27 | 2012-11-27 | Push-pull conversion rotating-type wheelchair running gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203089605U (en) |
-
2012
- 2012-11-27 CN CN 201220635287 patent/CN203089605U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20151127 |